Window lock



March -29, 1927. 1,622,979

0. E. SHOSTROM WINDOW LOCK Filed Aug. 25, 1926 2 Sheets-Sheet 1 Mar chE. sHos-TRbM WINDOW LOCK Filed Aug. 25, 1926 2 Sheets-Sheet 2 O EShosfrom INVENTOR X. EY- 4 ATTORNEY ranged thereon.

Patented Mar. 29, 1927.

UNITED STATES 1,622,979 PATENT OFFICE.

OSCAR E. SHOSTROM, OF SEATTLE, WASHINGTON.

WINDOW LOCK.

Application filed August 25, 1926. Serial No. 131,517.

This invention contemplates the provision of a novel form of windowlock, whereby either sash of the window can be locked in either a fullclosed position, or in any desired opened position, the inventionresiding in the construction, combination and arrangement of parts asclaimed.

In the drawings forming part of this application like numerals ofreference indicate similar parts in the several views and wherein Figure1 is a fragmentary front elevation of a window showing one of the sasheslocked in a partly opened position.

Figure 2 is an enlarged fragmentar vertical sectional view through theWindow showing the activeposition of the lock by full lines and theinactive position thereof by dotted lines.

Figure 3 is an edge elevation of one of the window sashes showing howthe lock is ar- Figure 4 is a sectional view on line 4t of Figure .3.

Figure 5 is a side elevation of one of the pivoted ball receivingmembers.

Figure 6'is a view taken at a' right angle to Figure 5.

Figure 7 is a fragmentary view showing the use of a key for operatingthe device.

Referring to the drawing in detail 10 indicates a window casing, while11 and 12 represent the upper and lower sashes, all of which areconstructed in the ordinary well known manner. The locking deviceforming the subject matter of the present invention is identically thesame for each sash, so that a detailed description of the in ventionwith one of these sashes will suffice for both. One longitudinal edge ofeach sash is recessed as clearly indicated at 13 in Figure 2 toaccommodate the locking device therefor.

The locking device comprises two pawl receiving members of the characterillustrated in Figures 5 and 6, these members being arranged one abovethe other Within the recess 13 as illustrated in Figure 3. These membersare indicated at 14: and 15 respectively, and each is in the nature of atrough-like casing open at its front and having its rear wall curved asclearly illustrated in Figure 2. Each member is hingedly mounted withinthe recess 13, b.- ing hingedly connected with an attaching plate 16which is suitably secured to the adjacent longitudinal edge of the sash.Projecting from the other end of each memher is an extension 17, and asclearly illustrated in Figure 2 these extensions are arranged inoverlapping relation andv are normally held against an abutment 18formed on the window casing. Arranged 111 each member is a ball 19 whichwhen the members are in their normal positions as shown by full lines inFigure 2, are held against the window casing 10, to prevent the windowsash from being either raised 4 illustrated by full lines in Figure 2.In-

this position of parts the sash is held immovable with relation to thewindow casing. When it is desired to release the window sash 'so that itcan be either raised or lowcred, it is only necessary to rotate theshaft 20 to move the eccentric 22 to the position indicatedby dottedlines in Figure 2, thereby allowing the members 14 and 15 to move to thepositions illustrated in dotted lines in the same figure. Any suitablemeans may be employed for rotating the shaft 20, I having shown inFigure et a knob 23 for this purpose, while in Figure 7 I haveillustrated the manner of using a key 25, so that the shaft 20 can notbe actuated by anyone except the one in possession of the key 25. Themembers 14: and 15 are identical in construction except that the member14 is provided with a slot normally closed by a pivoted finger 26, oneend of which is provided with an eye 27 connected with the adjacent endof a spring 28, the other end of the spring being connected with an eye29 carried by the eccentric 22. Consequently when the eccentric isshifted to the position shown by dotted lines in Figure 2, to releasethe window for movement, the finger 26 is swung upon its pivot by thespring 28,'thereby causing the finger to assume a position to supportthe adjacent ball Ill) 19 in the upper or larger endv Of? the member14-. y

hile it is believed that from the fore going description, the nature andadvantages of the invention will be readily apparent","I desire to haveit understood, that 1-- do not limit myself to what is herein shown anddescribed and that such changes may be resorted to when desired as fallwithin the scope ot' what is claimed.

What is claimed is:

1. A window lock comprising a pair of pivoted trough-like members.arrangedi within a recess formed in one side of the window sash,extensions formed. on the adjacent ends oi said members and arranged inoverlapping relation, a ball movable within each member and adapted-toengage the window casing for holding the sash immovable when saidmembers are in active positions, and means operable from the exteriorofthe sash for holding said members in their active positions.

2. A window lock comprising upper, and lower trough-like members mountedfor pivotal movement in arecess formed in the window sash, extensionsformed, on the adjacent ends of said members and-arranged in overlappedrelation, a ball movable within arch member and arranged; to engagethe.

window asing to hold the sashfixed relatively thereto when said membersare in their active positions, means operable exterior of the windowsash for, moving; and holding said members in their active positions, orpermitting said members to assume inactive positions, and meansoperableby the last mentioned meansfor supporting the ball adjacentone end oftheupper menuher when the latter assumes its inactive position. i

A window lock comprising upper and lower trough-lilge members pivotallymounted within a recess-formed in the window sash, cxtensions formed onthe adjacent ends of said members and arranged in overlapping relation,a ball operable within each member and arranged to engage the windowcasing for, holding the sash fixed relatively thereto, when said membersare in their active positions, a shaft journaled in the sash, aneccentric carried by the shaft. and cooperating with the overlappedextren'iities of said members. forv holding the latter in their activepositions or permitting said members to assume inactive positions, andmeans for operating, the shaft.

4. A, window, lock comprising upper and lower trough-like memberspivotally mounted within a recess formed in the window sash, and; havingtheir adjacent extremities ar ranged inoverlapping relation, a ball operable in each member and adapted to engage the window casing to hold thesash fixed relatively thereto, a shaft; journaled in the sash,aneccentric carriedby the shaft, and cooperating with the overlappedextremities of said members for moving the latter into their activepositions, or permitting said members to assume inactive positions,means for operating said shaft, a pivoted linger mounted on theuppermost member, and means. actuated. from said eccentric forpositioning said finger to support the, adjaeent ballv when said memberassumes its inactive position.

In testimony whereof I affixmy signature.

OSCAR E. SHOSTROM.

